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| Model | M393T5660FBA-CE6 |
|---|---|
| Product Type | Memory Module |
| Compliance Standards | EU RoHS,FCC |
| Memory Capacity | 2 GB |
| Memory Technology | DDR2 |
| Product Voltage | 1.8V |
| RAM Speed | 667MHz |
| RAM Standard | DDR2-667/PC2-5300 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL5 |
| Rank | Single Rank x4 |
| Quantity of Pins | 240-pin |
| RAM Genre | RDIMM |
This Samsung M393T5660FBA-CE6 is a server-grade DDR2-667 Registered ECC DIMM (RDIMM), purpose-built for legacy enterprise platforms running memory-intensive applications such as virtualization hosts and in-memory databases where data integrity is non-negotiable. Its single-rank x4 organization and registered signal type reduce the electrical load on the memory controller, ensuring stable multi-module operation at the rated CL5 latency across all 240-pin sockets.
1. ECC technology corrects single-bit errors in real time, shielding virtualized workloads from silent data corruption that could crash financial transaction ledgers.
2. The registered buffer minimizes electrical loading, so a fully populated server board sustains stable signal integrity across all slots for dense memory configurations.
3. Single Rank x4 organization streamlines command scheduling, lowering access latency spikes when multiple VMs compete for shared database pages.
4. CL5 cycle timing tightens data retrieval windows, keeping response times predictable on mid-tier application servers during burst traffic.
5. Two-gigabyte module capacity serves as balanced foundational memory for OS and hypervisor overhead in legacy server farms, leaving DIMM slots free for larger payloads.
As an RDIMM, the Samsung M393T5660FBA-CE6 is engineered for server platforms where data integrity and continuous uptime are non-negotiable. Its 2GB DDR2-667 specification might appear modest, yet the four defining characteristics directly address the real-world demands of legacy enterprise infrastructure. The ECC feature continuously detects and corrects single-bit memory errors caused by background radiation, preventing silent data corruption in a financial transaction database or a virtualized cluster hosting multiple critical tenants. The Registered signal type buffers the command and address lines, which dramatically reduces the electrical load on the memory controller when you populate all memory channels to maximize capacity—this keeps a dense virtualization host stable under heavy I/O, avoiding random crashes during peak trading hours. Operating at a standard 1.8V, the module meets the strict power budgets of densely packed rack servers, helping to lower cooling costs and improve energy efficiency across a large deployment. Finally, its Single Rank x4 organization provides a predictable, low-latency access pattern that benefits memory-caching databases like Redis or Memcached, where fetching small keys rapidly is more critical than raw throughput. For IT managers extending the life of installed base systems, this module translates directly into fewer unplanned outages, consistent application performance, and a lower total cost of ownership.
General Virtualization
For a legacy server using DDR2 Registered ECC DIMMs, populate all available channels evenly to maximize memory bandwidth for multiple virtual machines. Start with matched pairs or quad sets of 2 GB RDIMMs — a typical 8-slot system can achieve 16 GB total, sufficient for lightweight hypervisors and several small VMs. Avoid mixing single-rank and dual-rank modules in the same channel to maintain signal integrity and stable ECC operation.
In-Memory Database
In-memory databases demand low latency and absolute data integrity, making ECC RDIMMs essential. Given the 2 GB capacity per module, build the largest supported configuration — often 16 GB or 32 GB across eight slots — to hold entire datasets in RAM. Populate all slots with identical single-rank x4 DIMMs, as matched ranks reduce electrical loading and ensure consistent performance under sustained read/write loads.
HPC
High-performance computing clusters relying on DDR2-era nodes need maximum memory bandwidth per core. Install 2 GB Registered DIMMs in balanced configurations across independent memory channels, typically four or eight modules per node. Pair identical DIMMs in each channel to enable dual-channel or quad-channel interleaving, which improves effective throughput for parallel numerical workloads. Prioritize population rules from the server manual to avoid dropping to single-channel mode.
Strictly tested for reliable server use; compatible with Dell PowerEdge 2950, HP ProLiant DL380 G5, IBM x3650.
Q: Can I mix this M393T5660FBA-CE6 with other memory modules of different brands or speeds?
A: Mixing with different brands or speeds is not recommended. This registered ECC RDIMM requires matched modules to maintain signal integrity and avoid stability issues in server platforms.
Q: Is this memory compatible with my system? Which Intel or AMD server platforms support it?
A: It is compatible with servers using DDR2-667 registered ECC memory, such as Intel 5000/5100 series chipsets or AMD Opteron platforms that accept PC2-5300 RDIMMs. Verify your system supports 2GB single-rank x4 modules.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per channel, starting with the slots furthest from the CPU. For dual-channel platforms, install in pairs of the same rank and capacity to enable balanced memory interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No, this server-grade DDR2 registered DIMM strictly adheres to JEDEC specifications and does not support overclocking or XMP. It is designed for reliable, sustained operation at 667MHz with ECC enabled.
Q: What warranty and typical failure rate can I expect?
A: This module comes with a one-year warranty. As an OEM-specification Samsung RDIMM, the typical annualized failure rate is very low, generally below 0.5% in properly cooled enterprise environments.